Q: Study the following information carefully and answer the question given below it : 1. P, Q, R, S, T and U are six members in a family in which there are two married couples. 2. T, a teacher, is married to the doctor who is mother of R and U. 3. Q, the lawyer, is married to P. 4. P has one son and one grandson. 5. Of the two married ladies one is housewife. 6. There is one student and one male engineer in the family. How is R related to U ?